Bookbinding



J. C. DAWSON.

BOOKBINDING.

APPLlCATlGN man JAN. 17, 1920.

Patented Mar. 1

IIIIIIIII II E \1 NORRIS PETERS, INC LATHO WASHINGTON. U C

JAMES C. DAWSON, OF WEBSTER GROVES, MISSOURI.

BOOKBIN DING.

Application filed January '17, 1920. Serial No. 352,074.

To aZZ 10 from it may concern Be it known that I, JAMES (l. DAwsoN, a citizen of the United States, and resident of Webster Groves, county of St. Louis, and State of Missouri, have invented certain new and useful Improvements in Bookbinding, of which the following is a specification, and which are illustrated in the accompanying drawings, forming a part thereof.

The invention relates to the art of book binding, and has for its object to prov de improved means for closing the back of a volume which has been formed by securing a stack of loose sheets between a pair of separate covers.

In the accompanying drawings, Figure l is a detail perspective view showing a bound volume embodying the features of improvement provided by the invention;

Fig. 2 is a sectional view taken on plane indicated by the line 2-2 of Fig. 1;

big. 3 is a perspective view showing the part employed for closing the back of the volume; and

Fig. 4 is a detail perspective of a modlfication.

hen records are kept upon loose sheets, held in a file or the like,-a subsequent preservation of the sheets for future reference is frequently required. For this purpose a quantity of the sheets, as 10, may be secured between separate covers 11, 12. If only occasional reference to the sheets 10 is anticipated, it is desirable that both the covers 11, 12, and the means employed for securing the sheets between them, should be of the most inexpensive character. On the other hand, the rigidity of the volume of sheets, and the convenience with which it may Lie withdrawn from its place between a number of similar volumes, are greatl improved if the volume is provided wit a stout back piece, as 13. Furthermore, the provision of such a back piece aifords a place for indicating the character of the contained records in a place where this writing may be examined without handling the volume.

As shown, each of the covers 11, 12, takes the form of a fiat cloth-covered board formed with a hinge 14 extending transversely across the same near one end, to permit opening the volume when the covers are firmly secured upon the sheets. The binding may take any convenient form, that illustrated being a staple 15, having clenched ends 16. In order that both the cross-piece,

Specification of Letters Patent.

Patented Mar. 15, E321.

and preferably extends under the corresponding washer 18, another portion,21, of the flap being originally free. Each flap extends throughout the width of the cover and is gummed over its entire initially upper surface. In the original condition of the covers 11, 12, the free portion 21 of each flap 2O lies flat against cover in front of the hinge line 1 1.

As the length ofthe back piece 13 will be determined by the thickness of the volume,

' this piece is conveniently supplied in strip form equal in width with the covers 11,12, but intended to be cut to length after the sheets 10 and covers '11, 12, have beenrassembled. To facilitate the cutting, the strip is ruled with parallel transverse lines 22 upon the inside. In applying the back piece 13 the gummed upper surface of one of the flaps 20 is moistened, and an end portion of the back piece is applied thereto, to extend inwardly from the rear edge of the cover over the secured portion of the flap, or approximately to the hinge line 14:. The free portion 21 of the flap is then folded over upon the end of the back piece, and the operation is repeated at the other side of the volume and with the other end of the back piece, care being taken that the back piece is of such length that it may be stretched taut across the end of the volume.

While the back piece13 and flaps 20 will be desirably made from a stiff grade ofvstout paper, provision is preferably made to resist tearing the back piece when this part is grasped for the purpose of withdrawing the volume from its place between similar volumes on a shelf or the like (not shown.) For this purpose the back piece is preferably formed with a stitched hem 23 along each margin. The back piece 13 not only protects the inner ends of the sheets 10 and provides a labeling surface,

preferably equippedflap is permanently the corresponding but it also serves to greatly strengthen the finished volume. Furthermore, it is readily applied, imparts a finished appearance to the volume, and the manner of its application contributes to its strengthening effect.

A modification is shown in Fig. 4, in which an end of the back strip 13 is permanently secured to back cover 12, its length loosely extended inwardly along the surface of the pasted cover. Preferably the strip is against the portion beyond the hinge, and the metal Washer 18 is placed over the secured portion of the strip. In the binding of the book the strip is folded on itself at about the hinge line, as shown in Fig. i, and being carried around the back of the book, its end is fastened by means of gummed strip 20, 21, as in the modification first described.

I claim as my invention:

1. A book comprising, in combination, a stack of sheets, separate covers, fastening means uniting the sheets and covers, a flap extending transversely across each cover and permanently secured against the outer face of the cover over an area extending inwardly from the rear edge of the cover a distance equal to half the width of the flap, and a strip covering the rear end of the stack of sheets, a portion adjacent each end of the strip being extended over and secured against that part of one of the flaps Which is secured against the corresponding cover, the

other part of each flap being folded over' upon and secured against the adjacent end portion of the strip.

2. In a. book binding, in combination, a

pair of separate covers, and a flap extending transversely across eachcover and permanently secured against the outer face of the cover over an area extending inwardly from the rear edge of the cover a distance equal to half the Width of the flap, the remainder of the flap being freeand the entire upper surface of the flap being gummed.

3. In a book binding, in combination, a pair of separate covers each having a trans verse hinge adjacent its rear edge, and a gummed transverse flap springing from each cover upon the outside of the same in rear of but immediately adjacent the corresponding hinge, the gummed surface of the flap facing the rear edge of the cover.

4. In a book binding, in combination, a pair of separate covers each being punched adjacent its rear edge for the reception of a binding staple or the like, and a gummed transverse flap springing from each cover upon the outside of the same in front of the said punching, the gummed surface of the flap facing the rear edge of the cover.

5. In a book binding, in combination, a back cover, a strip secured to the cover for a short distance inwardly from the back end, and adapted to be folded on itself and carried around and to cover the back of the book, a front cover having a gummed flap one-half of the flap secured to the outside of the rear end of the cover, whereby the strip may have its end'pasted to the secured portion of the flap and the flap may be folded over and pasted to the pasted end of the strip.

JAMES C. DAWSON. 

